Analysis

  • max time kernel
    4294180s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • submitted
    21/03/2022, 10:38

General

  • Target
    SOA 21-03-2022.exe
  • Size 199KB
  • Sample220321-mpdx8sbffm
  • SHA256 0a26073dc1b719d6c2f2ceb4c2a43f44d031c59c9a1082cace4b0358080c3cea
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.loisuites.com.ar

  • Port

    587

  • Password

    ReKo2014

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • suricata: ET MALWARE AgentTesla Exfil Via SMTP

    suricata: ET MALWARE AgentTesla Exfil Via SMTP

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SOA 21-03-2022.exe
    "C:\Users\Admin\AppData\Local\Temp\SOA 21-03-2022.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2032
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 15
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1480
      • C:\Windows\SysWOW64\timeout.exe
        timeout 15
        3⤵
        • Delays execution with timeout.exe
        PID:1988
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:956

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/956-65-0x0000000000400000-0x000000000043A000-memory.dmp

        memory/956-78-0x0000000004CC1000-0x0000000004CC2000-memory.dmp

        memory/956-76-0x0000000074210000-0x00000000748FE000-memory.dmp

        memory/956-77-0x0000000004CC0000-0x0000000004CC1000-memory.dmp

        memory/956-75-0x0000000000400000-0x000000000043A000-memory.dmp

        memory/956-73-0x0000000000400000-0x000000000043A000-memory.dmp

        memory/956-71-0x0000000000400000-0x000000000043A000-memory.dmp

        memory/956-69-0x0000000000400000-0x000000000043A000-memory.dmp

        memory/956-67-0x0000000000400000-0x000000000043A000-memory.dmp

        memory/956-63-0x0000000000400000-0x000000000043A000-memory.dmp

        memory/2032-58-0x00000000050D0000-0x000000000515A000-memory.dmp

        memory/2032-62-0x0000000004E30000-0x0000000004E7C000-memory.dmp

        memory/2032-61-0x00000000043B0000-0x00000000043F2000-memory.dmp

        memory/2032-60-0x0000000000730000-0x0000000000772000-memory.dmp

        memory/2032-59-0x0000000004590000-0x00000000045D6000-memory.dmp

        memory/2032-54-0x0000000000330000-0x0000000000368000-memory.dmp

        memory/2032-57-0x00000000043F0000-0x00000000043F1000-memory.dmp

        memory/2032-56-0x0000000074C91000-0x0000000074C93000-memory.dmp

        memory/2032-55-0x0000000074210000-0x00000000748FE000-memory.dmp